Removable counterweight for excavating and load handling machines



July 27, 1943. R. H. ZEILMAN REMOVABLE COUNTERWEIGHT FOR EXCAVATING AND LOAD HANDLING MACHINES Filed Sept. 8, 1941 3 Sheets-Sheet l M Q INVENTOR.

BY W,

y 27, 1943- R. H. ZEILMAN 2,325,089

REMOVABLE COUNTERWEIGHT FOR EXCAVATING AND LOAD HANDLING MACHINES Filed Sept. 8, 1941 3 Sheets-Sheet 2 F41 2 'INVENTIOR.

BY M

y 1943 R. H. zElLMAN 2,325,089

REMOVABLE COUNTERWEIGHT FOR EXCAVATING AND LOAD HANDLING MACHINES f emTE chines.

said embodiments, in which drawings: 7

weight of my invention;

a utility truck;

Patented July 27, 1943 c 4 REMOVABLE COUNTERWEIGHTFOREXGAZ VATING AND oan HANDLING MACHINES z; 7 Roy. H. Zeilinan; Lorain, Ohio, assignorto' 'lliew Shovel Company, Lorain, Ohio, a, corporation" Application September 8, 194 1 ,Serial NOLA 09,9161: I SClailiis. (c1.,212 49 g i My invention relates to a movable counterweight for excavating and load. handling ma- The improved counterweight of my invention is preferably constructed in such manner that theweight of the excavating o'rload handlingmachine which is supplemented'bythecounterw t may be diminishedrfor. travelling; whereby the" maximum vehicle weight permissible for highway be easily removed thereirom and placed upon a to decrease the weight of the machine for travelling. r z It is a primary object of .my invention th'ere- .Fig. 7 is a sectional view-takenon the line 'i-" l I r ''Fig. 8 is a further step in'removing the count-en weight fromthe motor crane; and]. j .jFig. 9 shows the last step: in ltransferring jthe j weight from the'motor crane to the' utility truck illustr-atedinsaid figure;

Referringnow to the drawings and particularv I ly'to Fig. 1 I have illustrate'd' generally.at is "motor'truck having .a, driving compartment' ll mounted iorwardly'theredf and an operator"s='cal) Il 2 m'ounted rearwardly-thereoi,:said drivingcompartment and cab being mounted upon the truck frame l3,said fram'e being mounted upon pneumatic .tires 14. g superstructure-inc1uding a loooml lfilis rotatably supported in the usual man her on the frameand the elevation of the boom iscoritrolled' in a well known mannerhy supportutility. truck or the like transported to the job ing 'c'able l6-reeVed-through the-sheaves Hat the {counterweight being aifixed to the; rearlofflthe fore .to construct a counterweight which may be removable; said weightbeing adapted to'be used forthe usualxpurposes of balanceand to add weight to an excavatingand load handling machine when a crane or shovel usedin connection therewith is in operative use.

-A further object of my invention is to-so con V struct such improved counterweight as to render w the same removable from the-excavating and load ence to certain embodiments of my invention and cab andemployedfto assist inthebalanceof thetruck when'the superstructure is employed therewith, andsaidcounterWeight it, as contemplated hy'my invention, is-a removable weight consisting cf a s'eiriijecylindric'alcasting or the like'ha'vifng agenerally smooth ar'c'uate exterior suriacewhen thesamejis mounted'at the rear of the-cab; its

inner surface beingf'cut away as shown as best illustrated in Figl fitoform ashoulder iii", an upstanding-flange 2 and a seat! 9, saidfseati9 at an intermediate portionbeing provided withjoolt aperturesifi and a downwardlyextending'lugor by reference to the accompanying drawings of j Fig. 1 is an elevational view, mainly diagrammatic of a motor craneyhaving the improved counterweight of my invention associated therewith;

Fig.2 is a 'fragmentary top plan view of Fig. 1.

and the weight associated'therewithj Fig. 3 is a rear elevational view of the cab;

the weight and the chassis; a

' I Fig. 4 is a. longitudinal sectional view taken on the line l i of Fig; 3; e a V "Fig. 5 is-a perspective view of thercounter- Fig. 6 is a rear elevational 'vie w showing the first step; employed in: transferring. the weight adapted to beassociated withthe crane of my in- 1 45 l w m 1 It is to beinoted thatftwdcounter'weight susear 2l',="sai'd lugbeing' adapted to seat upon .afrear bed, channelffid disposed at the lowermost -po'r tiono'f said "crane operating 'cab and rigidly affixed theretoi 'The. inner face of said counter- ;to projectya's best shown in Fig. 4, jor the purpose of'securing saidco'unterweight to their'e'ar cured to the rear of'the cab.

bed channel 29 whichis'welded'orotherwise se I V pension rods 24, which' are secured to 'the upper portion of the machinery frame, as atf24'5, for

the superstructure; are threadingly." engagdjby sleeve nutsjzfi pinned torelatively short sue-I pension rods 26, which suspension 'rodsf'are projected through'th'ebolt apertures 20 and support V V the weight ontheir lowerhea dsgii. vention, as shown injFig. "lgfrom suchcrane to 1lQ" DD r"I fi0n o hem chinery'frame.

jet-cent the mounting of said I counterweight su's I, Skid beams 32 are next installed.

manner.

Hence, it will be seen that when the counterweight is secured in position on the excavating and load handling machine, it is retained there-,

on by means of the counterweight suspension pension rods 24 thereon, is tied to the bed of r .the cab by rods 28 and nuts 30 in the usual structure which extends over the forward portion of the vehicle carrying the same balances the same and a weight is then unnecessary whereby rods 24, the relatively short suspension rods 26 and bolts 23 which project throughthe rear'bed channel 29. It is hence suspended from the machinery frame and secured at the rear of the operators cab with'the upstanding. flange 21 thereof abutting a lowerportion 3L0f1thefiab.

It is to be' noted that the improved counterweight of my invention when in this position easily removable from its secured position with the cab in the following manner: The counterweight bolts 23, preferably" three in number, which areprojected through the apertures 22 in the counterweight and aligned apertures in the rear bed channel 29, are removed, whereupon the counterweight is then raised by tur'ningthe sleeve 7 "nuts 25 with a wrench or'siinilar to'ol to the position illustrated in Figs. 6 and 7.

crane chassisside rails 33 by fastening in place with clamp bars 35 and clamp bolts 36,'and the on topv of the the weight of the machine for travelling purposes is reduced.

It is to be understood that although I have described my invention in connection with certain specific embodiments various otherforms of the invention will become apparent and that numerous and extensive departures may be made therefrom without, however, departing from the spirit of my invention claims.

.I claim:

or-the scope of theappended 1, In an excavating 01' load handling machine, atruck chassis=having mounted thereon a turntable upon which a superstructure is erected, a

machinery frame for said superstructure and a cab structure, a counterweight removably secured adjacent the rear end of said cab structure consisting of a semi-cylindrical weight, said weight being adapted to be suspended from the upper portion of the machinery frame for the superstructure, kid beams beingv adapted to be mounted on saidtruck chassis under the counterweight and removably secured thereto, said top of said skid beams'are then covered with a" I coating of axle or cuprgrease.

The counterweight is then lowered by again until they are free from the suspension rods 24 and the sleeve nuts holdthe rod26 in placeinv the counterweight. V r r, .r'

. The counterweight is then skidded back on the skid beam 32 by either pulling the count rweight with acable looped through the'cord pocket 3'! in the counterweight or the vehicle carrying the superstructure could be started in'reverse'and the brakes then jammed ion to skid the counterweight back against the stops-38 on the skid beams.

The weight is then removed fromjhe skid beams by revolving the craneor other super- :structure and hooking onto the-counterweight lifting-eyes 39 with a hoisting hook blocker the I like whereby the counterweight can be placed in a utilitytruck-eli, as illustrated inFig. 9, for

transportation either to, or away from a job.

Toinstall the counterweight on an excavating or load handling machine, theireverse procedure is;lfollo'wed, The counterweight is placed on the skid beams' extended rearwardly of theoperators cab, thev counterweight drawn underneath the operators cab toa positionsuch as illustrated inFig. 7, the sleeve nuts lifted toengage the threaded rods 24 and turned up as byawrench' counterweight being adapted to beremoved from said suspended relation with said machinery frame and from said mounting and being supturning the sleeve. nuts 25 ,downwardly'until the" counterweight restsv on the top of the skid beams .32; The sleeve nuts are loosened, as illustrated, chine, V

ported by'said skid beamswhereby said counterweight-may be readily removed from its association with said excavating and load handling ma- "2. In an ex'cavatingor load handling machine,

a truck chassis having'mounted thereon a turntable upon which a superstructure is erected, a

machinery frame for said superstructure and a a :cab structure, a counterweight removably secured to the rear end of said "cab structure, said weight adapted "to be supported by the-upper portion of the machinery frame for the superstructure, skid beams-adapted to be disposed upon saidchassis and disposed beneath said counter- ,weight, whereby said counterweight may berechinery frame and disposed upon saidskidbeams.

turntable upon which a superstructure is erected moved from said cab and superstructure ma- 3; In an excavating or load: handling machine, truck chassis having mounted thereon a amachineryframe and a cab structure, a coun-.

terweight removably secured tothe rear :end of said cab structure, said weight adapted to. be

' counterweight whereby said counterweight may supported by the upper portion of the superstructure machinery frame, skid beams being adapted to be mounted on said chassis under said be removed from said superstructure and disposed to lift the counterweight from the skid beams,

' the skid beams removed, the weight lowered :to

engage the lip, onjith'e channel'm, and bolts 23 used to fastenthe counterweight to the grear bed channel.

Hence, it can be seen that the counterweight of my invention is adapted to be removed from. or secured to a, load handling orfexcavating ma- 'chine'in an'in'ex'pensive and'efiieientfmanner' and that the same is unis/placed onll't'he machine when the same isdesired for theipurpose of balance, or additional" weigh'tjto compensate for operations of thesuper'strucjture"which,tend to funbalan'ce the excavating orfload, handling imachine andwhen the excavati'ng or load handling @machine and the superstructure thereof is placed in travelling'position that portion bfthejsupersaid counterweightbeing adapted when removed from said cab to rest on said skid beams, said superstructure being" adapted to bebrought into locking engagement ,withthe count erv'veight when said counterweight is positioned said.

beams whereby the counterweight may be removed from said excavating or load handling ma V chine.

5. In an excavating or load handling machine,

a truck chassis, a turntable mountedthereon, a

crane supported by said tirntable, a machinery frame for said crane structure, a cab mounted upon said turntable, chassis side rails associated with said chassis and extending rearwardly andi longitudinally thereof, said skids being adapted to be removably secured to the truck chassis,

skid beams clamped to said side rails, a counter weight being adapted to be placed on said skid beams rearwardly of the said cab, said counterweight being movable forwardly of its said posi-- tion on the said skid beams whereby said counterweight may be positioned adjacent the rear portion of the cab and'support means adapted t be associated with said cab which may engaged with said counterweight whereby said corin terweight is removably secured to said cab. 7

6. In a machine of the class described, a truck load handling devicesupported by said turntable,

said truck framehaving a pair of side rails-skid beams removablysecured to saidyrails, a Counterweight being adapted to be disposed adjacent ,Lthe' rear portion of said truclcupon said, skid frame, a turntable rotatably mounted thereon, a load handling device supported by saidturntable,

said truck frame having a pair of side rails, skid beams removably secured to said rails, a coun said truck and removabiy secured thereto, said skid beams being adapted to be mounted on the terweight disposed adjacent the rear portion of ge'd by said load handling beams and to be removably secured to said truck,

said weight being moved on said'truck by said load handling device.

8. In a machine of the class described, a truck chassis, a turntable rotatably mounted thereon,

, a load handling device'supported by said turn-l H 7 table, a frame therefor, a cab supported on said turntable, said frame for said load handling dcvice being secured to said cab, a counterweight removably. secured to said cab and .to said frame, means being adapted to remove thecounterweight therefrom, said tru'ck' being adapted to have skid V meansassociated therewithand extending rear wardly thereof which skid means are adapted to be disposedbeneathlsaid counterweightwhereby and be en-' said'weight may be moved thereon device' ROY H.VZEILMLAN. 1 

